including tuberculosis. serious, sometimes fatal events, such as infections, lymphoma, or other types of cancer, have happened. blood, liver and nervous system problems, serious allergic reactions, and new or worsening heart failure have occurred. before starting humira , your doctor should test you for tb. ask your doctor if you live in or have been to a region where certain fungal infections are common. tell your doctor if you have had tb, hepatitis b, are prone to infections, or have symptoms such as fever, fatigue, cough, or sores. you should not start humira if you have any kind of infection. ask your doctor if humira can work for you. this is humira at work. and our networks are getting crowded. but if congress, the fcc, and the administration free up... more licensed wireless spectrum, we can empower more... people to innovate, create new technologies and jobs... and strengthen the economy. america is the world's leader in wireless.